Paget Foundation (Paget's Disease, Primary Hyperparathyroidism, Fibrous Dysplasis, Osteopetrosis)

Parents of Galactosemic Children, Inc (Galactosemia)

Parkinson Foundation of Canada (Parkinson Disease)

Pediatric Neurotransmitter Disease Association (Neurotransmitter Diseases)

Perthes Disease Support Group *New Zealand (Perthes Disease)

Pierre Robin Network (Pierre Robin Sequence)

PKU News (PKU - Phenylketonuria)

Polycystic Ovarian Syndrome Association ((Polycystic Ovarian Syndrome)

Prader-Willi Syndrome Association (USA) (Prader-Willi Syndrome)

PRISMS (Parents and Researchers interested in Smith-Magenis
Syndrome) (Smith-Magenis Syndrome)

Proteus Syndrome Support Group (Proteus Syndrome)

Prune Belly Syndrome Network (Prune Belly Syndrome)

Pseudoxanthoma Elasticum International (Pseudoxanthoma Elasticum)

Psoriasis Education Program (Canada) (Psoriasis)

Psoriasis Society of Canada (Psoriasis)

Pull Thru Network (Anorectal Malformation)

Purine Research Society (Purine Autism)